Revert "Liveness Analysis Pass"

This reverts commit r197254.

This was an accidental merge of Juergen's patch. It will be checked in
shortly, but wasn't meant to go in quite yet.

Conflicts:
	include/llvm/CodeGen/StackMaps.h
	lib/CodeGen/StackMaps.cpp
	test/CodeGen/X86/stackmap-liveness.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197260 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 67 deletions

diff --git a/include/llvm/CodeGen/StackMapLivenessAnalysis.h b/include/llvm/CodeGen/StackMapLivenessAnalysis.h
deleted file mode 100644
index 4631f0fa79..0000000000
--- a/include/llvm/CodeGen/StackMapLivenessAnalysis.h
+++ /dev/null
@@ -1,67 +0,0 @@
-//===--- StackMapLivenessAnalysis - StackMap Liveness Analysis --*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This pass calculates the liveness for each basic block in a function and
-// attaches the register live-out information to a stackmap or patchpoint
-// intrinsic if present.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CODEGEN_STACKMAP_LIVENESS_ANALYSIS_H
-#define LLVM_CODEGEN_STACKMAP_LIVENESS_ANALYSIS_H
-
-#include "llvm/CodeGen/LivePhysRegs.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-
-
-namespace llvm {
-
-/// \brief This pass calculates the liveness information for each basic block in
-/// a function and attaches the register live-out information to a stackmap or
-/// patchpoint intrinsic if present.
-///
-/// This is an optional pass that has to be explicitely enabled via the
-/// -enable-stackmap-liveness flag. The pass skips functions that don't have any
-/// stackmap or patchpoint intrinsics. The information provided by this pass is
-/// optional and not required by the aformentioned intrinsics to function.
-class StackMapLiveness : public MachineFunctionPass {
-  MachineFunction *MF;
-  const TargetRegisterInfo *TRI;
-  LivePhysRegs LiveRegs;
-public:
-  static char ID;
-
-  /// \brief Default construct and initialize the pass.
-  StackMapLiveness();
-
-  /// \brief Tell the pass manager which passes we depend on and what
-  /// information we preserve.
-  virtual void getAnalysisUsage(AnalysisUsage &AU) const;
-
-  /// \brief Calculate the liveness information for the given machine function.
-  virtual bool runOnMachineFunction(MachineFunction &MF);
-
-private:
-  /// \brief Performs the actual liveness calculation for the function.
-  bool calculateLiveness();
-
-  /// \brief Add the current register live set to the instruction.
-  void addLiveOutSetToMI(MachineInstr &MI);
-
-  /// \brief Create a register mask and initialize it with the registers from
-  /// the register live set.
-  uint32_t *createRegisterMask() const;
-
-  /// \brief Print the current register live set for debugging.
-  void printLiveOutSet(raw_ostream &OS) const;
-};
-
-} // end llvm namespace
-
-#endif // end LLVM_CODEGEN_STACKMAP_LIVENESS_ANALYSIS_H